Ball bearing



1. Ball bearing

3. Ball bearing

1.1 : Perspective;

1.2 : Front;

1.3 : Back;

1.4 : Top;

1.5 : Bottom;

1.6 : Left;

1.7 : Right;

3.1 : Perspective;

3.2 : Front;

3.3 : Back;

3.4 : Top;

3.5 : Bottom;

3.6 : Left; and

3.7 : Right.

The broken line in the reproductions depicts unclaimed portions of the ball bearing only and forms no part of the claimed design. 

CLAIM The ornamental design for a ball bearing, as shown and described. 